2-70275059-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_016297.4(PCYOX1):​c.595C>T​(p.Leu199Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000616 in 1,461,574 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

PCYOX1
NM_016297.4 missense

Scores

1
3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.63
Variant links:
Genes affected
PCYOX1 (HGNC:20588): (prenylcysteine oxidase 1) Prenylcysteine is released during the degradation of prenylated proteins. PCYOX1 catalyzes the degradation of prenylcysteine to yield free cysteines and a hydrophobic isoprenoid product (Tschantz et al., 1999 [PubMed 10585463]).[supplied by OMIM, Mar 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.3384295).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PCYOX1NM_016297.4 linkuse as main transcriptc.595C>T p.Leu199Phe missense_variant 4/6 ENST00000433351.7 NP_057381.3 Q9UHG3-1
PCYOX1XM_047444689.1 linkuse as main transcriptc.364C>T p.Leu122Phe missense_variant 4/6 XP_047300645.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PCYOX1ENST00000433351.7 linkuse as main transcriptc.595C>T p.Leu199Phe missense_variant 4/61 NM_016297.4 ENSP00000387654.2 Q9UHG3-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1461574
Hom.:
0
Cov.:
30
AF XY:
0.00000825
AC XY:
6
AN XY:
727122
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000810
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 01, 2024The c.595C>T (p.L199F) alteration is located in exon 4 (coding exon 4) of the PCYOX1 gene. This alteration results from a C to T substitution at nucleotide position 595, causing the leucine (L) at amino acid position 199 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.012
T;T;T;.;T
Eigen
Benign
0.024
Eigen_PC
Benign
0.13
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.68
T;T;T;T;T
M_CAP
Benign
0.0078
T
MetaRNN
Benign
0.34
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.0
.;.;M;.;.
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-2.2
N;N;N;D;N
REVEL
Benign
0.090
Sift
Benign
0.16
T;D;T;D;D
Sift4G
Uncertain
0.021
D;T;T;T;T
Polyphen
0.042
.;.;B;.;.
Vest4
0.28, 0.24
MutPred
0.74
.;.;Loss of stability (P = 0.0859);Loss of stability (P = 0.0859);.;
MVP
0.30
MPC
0.15
ClinPred
0.61
D
GERP RS
3.6
Varity_R
0.14
gMVP
0.83

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1050443770; hg19: chr2-70502191; API